Hardware Element Evaluation
Study ISO 26262-8:2018 Clause 13: hardware element classes, application-specific evidence, integration responsibilities and clearly labelled fictional examples.
- Chapters
- 10
- Chapters
- Element classes
- 3
- Element classes
- Fictional scenarios
- 3
- Fictional scenarios
Quick answers
- What does Clause 13 evaluate?
- ISO 26262-8:2018 Clause 13 evaluates eligible hardware developed outside ISO 26262 for its intended safety-related application, focusing on systematic-fault suitability. The integrator establishes random-fault suitability at the next design level; common failure-mode obligations still apply.
- Does ASIL determine the element class?
- No. Classes I, II and III depend on verification difficulty, available implementation information and the role of internal safety mechanisms. ASIL still matters to the allocated safety requirements and other lifecycle obligations.
Why it pays for itself
Understand the evaluation scope
Determine what an application-specific hardware evaluation can establish and what remains with the integrator.
Follow the element class
Classes I, II and III determine the evaluation path; ASIL alone does not classify the element.
Recognize evidence limits
Fictional scenarios and synthetic plots expose assumptions, unsupported extrapolations and unresolved requirements.
What you’ll be able to do
Assess Clause 13 applicability
Use development history and intended use to identify the relevant evaluation route.
Classify the hardware element
Consider behavior, available information and internal safety mechanisms.
Evaluate the evidence
Explain what analysis, tests and operational data support and where gaps remain.
Document the evaluated scope
Record pass/fail results, verification findings and integration restrictions.
Chapter by chapter
- 01
Hardware Element Evaluation Overview
Identify eligible hardware and distinguish the supporting-process routes.
- Scope
- Development history
- Integration
- 02
ISO 26262-8 Clause 13 Framework
Classify elements as I, II or III and understand the common and class-specific obligations.
- Element classes
- Internal safety mechanisms
- Work products
- 03
Hardware Element Definition & Boundaries
Define the evaluated configuration, interfaces and application limits.
- Boundaries
- Dependencies
- Operating conditions
- 04
Systematic Evaluation Process
Build an application-specific argument, verify results and justify restrictions.
- Analysis and tests
- Class III measures
- Report verification
- 05
Technical Analysis Methods
Select methods for systematic-fault evaluation and understand their relation to random-fault analysis.
- FMEA and FTA
- Dependent failures
- Part 5 boundaries
- 06
SEooC Parallels & Relationships
Distinguish SEooC development from legacy evaluation and verify integration assumptions.
- Development history
- Assumption register
- Context gaps
- 07
Evidence Collection & Assessment
Assess source applicability, traceability and the limits of operational evidence.
- Evidence links
- Data quality
- Statistical assumptions
- 08
Documentation & Reporting
Organize plans, reports, verification findings and configuration records.
- Evaluation plan
- Traceability
- Verified report
- 09
Automotive Case Studies
Explore converter classification, synthetic radar performance and synthetic acceleration traces.
- Converter IC
- Radar scope
- Restraint-controller limits
- 10
Industry Best Practices
Plan supplier evidence, recognize unsupported claims and maintain the argument through change.
- Planning
- Review
- Change impact
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Expert plan pricingConverter, radar and restraint-controller examples
Original educational scenarios illustrate classification and evidence boundaries. Numerical plots are synthetic and do not represent real products or approvals.
- Class III implications of an internal safety mechanism
- Radar performance insufficiency and the SOTIF boundary
- Limits of a simplified acceleration-integral rule
Explore the lesson
Who this guide is for
- Engineers evaluating existing hardware
- Suppliers preparing application-specific evidence
- Safety managers planning reuse
- Reviewers checking evaluation arguments
Frequently Asked Questions
Common questions about Hardware Element Evaluation
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Where this topic leads next.
- HardwareSoft Errors & Transient FaultsA cosmic ray hits a memory cell and your ASIL D function computes with a wrong value. This concept walks from the physics of radiation-induced bit flips through single event effects, ECC and hardened design, all the way to Part 11 quantification.
- HardwareISO 26262 and SemiconductorsPractical handbook for applying ISO 26262 Part 11 to digital, analog, programmable logic, multi-core SoCs, and sensor silicon. Covers SEooC and DIA for IPs and chips, on-chip safety mechanisms, FMEDA at silicon, DFA at die level, fault injection campaigns, and EDA tool qualification.
- SoftwareSoftware Architectural & Unit DesignLearn architecture patterns for fault isolation, testability, and diagnostic coverage in safety-critical software. Covers modularity, design-by-contract, complexity metrics, and structural coverage requirements per ASIL.